STMicroelectronics TS339IYDT
- Part No.:
- TS339IYDT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS339IYDT.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SO
- Quantity:
- Payment:

- Shipping:

Inventory:4,311
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Product details
Overview
TS339IYDT from STMicroelectronics is a micropower quad CMOS voltage comparator with 9 µA typical supply current per comparator, 1.5 µs typical response time at 5 mV overdrive, and input common-mode range extending to ground. It operates from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual), features 1 pA typical input bias current, and is pin-to-pin compatible with LM339 in SO-14 automotive-grade packaging.
For engineers reviewing the TS339IYDT datasheet, TS339IYDT pinout, TS339IYDT application, or TS339IYDT equivalent, key selection criteria include ultra-low quiescent current for battery-powered sensing, rail-to-rail input capability down to GND, fast propagation delay under light load, and AEC-Q200–qualified SO-14 packaging for automotive subsystems.
Technical Context
The TS339IYDT integrates four independent CMOS comparators on a single die, each with high-impedance inputs (10¹² Ω typ) and push-pull CMOS outputs-unlike open-collector bipolar LM339 variants. Its input stage supports common-mode voltages from GND to VCC − 1.2 V, enabling direct interfacing with low-voltage sensors and microcontroller ADC references.
Designed for low-power precision threshold detection, it delivers stable operation across −40°C to +125°C with 70–85 dB supply and common-mode rejection. Output drive capability (6 mA sink, <1 µA source) supports direct TTL/CMOS logic interfacing without external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 9 µA per comparator - enables multi-comparator monitoring in energy-constrained systems (e.g., automotive body controllers) |
| Input Bias Current | 1 pA typ - preserves signal integrity when sensing high-impedance sources like thermistors or photodiodes |
| Response Time | 1.5 µs typ @ 5 mV overdrive - supports real-time fault detection in motor control feedback loops |
| Input Common-Mode Range | 0 V to VCC − 1.2 V - allows direct connection to GND-referenced sensors without level-shifting circuitry |
| Output Type | Push-pull CMOS - eliminates need for external pull-up resistors, reducing BOM count and board space |
| ESD Rating | HBM: 50 V - meets baseline robustness requirements for automotive assembly environments |
Pinout & Package
TS339IYDT is supplied in SO-14 (Small Outline) package, 150 mil width, with gull-wing leads and RoHS-compliant ECOPACK® construction. Pin 1 marked by notch or dot; device qualified per AEC-Q200 for automotive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Comp A) | Accepts reference or sensed signal for first comparator; supports GND-to-VCC−1.2 V common-mode range |
| 2 | Non-inverting Input (Comp A) | Accepts variable input (e.g., sensor output); differential pair with Pin 1 defines switching threshold |
| 3 | Output (Comp A) | CMOS push-pull output; drives logic-high up to VCC, logic-low to <0.55 V at 6 mA sink |
| 4 | Inverting Input (Comp B) | Dedicated input for second comparator; electrically isolated from other channels |
| 5 | Non-inverting Input (Comp B) | Independent threshold input for redundant or multi-zone monitoring |
| 6 | Output (Comp B) | Independent CMOS output; no internal cross-coupling with other comparators |
| 7 | VCC− / GND | Ground reference for all comparators; required return path for input bias and output current |
| 8 | VCC+ | Positive supply rail; supports 2.7–16 V operation; powers all four comparators |
| 9 | Inverting Input (Comp C) | Third comparator input; identical electrical specs to Pins 1 and 4 |
| 10 | Non-inverting Input (Comp C) | Third comparator threshold input; supports same voltage range and impedance as others |
| 11 | Output (Comp C) | Third independent CMOS output; capable of driving 6 mA sink load directly |
| 12 | Inverting Input (Comp D) | Fourth comparator input; fully decoupled; shares supply and ground with others |
| 13 | Non-inverting Input (Comp D) | Final threshold input; enables four-channel window, overvoltage, or sequencing detection |
| 14 | Output (Comp D) | Fourth CMOS output; completes quad-function capability without external components |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 9 µA/comparator enables >10-year battery life in always-on vehicle intrusion detection circuits |
| GND-Sensing Inputs | Input common-mode range includes 0 V - eliminates level shifters when monitoring shunt-based current sense signals |
| Push-Pull Outputs | No external pull-up needed - reduces component count and PCB area in multi-signal alert systems |
| Automotive Qualification | AEC-Q200 Grade 1 (−40°C to +125°C) - certified for engine bay and cabin control module deployment |
| High Input Impedance | 10¹² Ω typical - prevents loading of high-Z sensor outputs such as piezoelectric knock sensors |
Applications
| Battery Voltage Monitor | Motor Overcurrent Protection |
|---|---|
Use Scenario: Monitoring 12 V lead-acid battery voltage across charge/discharge cycles in automotive body control modules. IC Role / Device Role: Quad comparator configures three thresholds (undervoltage, nominal, overvoltage) plus spare channel for backup validation. Use Value: 9 µA total quiescent draw extends sleep-mode battery life; GND-referenced inputs interface directly with resistor-divider networks. | Use Scenario: Detecting excessive current in BLDC motor phase legs using shunt resistor voltage drops. IC Role / Device Role: Each comparator monitors one phase leg; outputs feed MCU interrupt pins or hardware shutdown logic. Use Value: 1.5 µs response ensures timely fault capture before IGBT damage; push-pull outputs drive MCU GPIOs without pull-ups. |
| Window Comparator for Sensor Diagnostics | Power Sequencing Supervisor |
Use Scenario: Validating output range of analog temperature or pressure sensors in ADAS domain controllers. IC Role / Device Role: Two comparators form upper/lower bounds; third detects out-of-range condition; fourth enables hysteresis or status flag. Use Value: 1 pA input bias avoids measurement error in high-resistance sensor bridges; rail-to-ground input supports full-scale sensor swing. | Use Scenario: Verifying correct power-up order of multiple rails (e.g., 5 V, 3.3 V, 1.2 V) in infotainment SoC supplies. IC Role / Device Role: Each comparator validates one rail against precision reference; outputs combined via wired-OR or logic gate. Use Value: Wide 2.7–16 V supply range allows direct monitoring of unregulated inputs; SO-14 footprint fits tight layout constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Bipolar input stage; 500 µA supply current per comparator; open-collector outputs require pull-up resistors | Higher power consumption limits use in always-on systems; slower response (~1.3 µs min) but wider temp range (−55°C to +125°C) | Select when legacy compatibility or extreme cold-temp operation is prioritized over power efficiency |
| TS3704IPT | Same CMOS architecture; 10 µA supply current; identical pinout; push-pull outputs; higher CMRR (85 dB) | Improved noise immunity in EMI-heavy automotive environments; same SO-14 footprint and AEC-Q200 qualification | Select for enhanced precision in safety-critical voltage supervision where offset drift must be minimized |
Compared with LM339DR and TS3704IPT, TS339IYDT offers the lowest quiescent current among automotive-qualified quad comparators while retaining push-pull outputs and GND-sensing capability-making it optimal for long-duration battery monitoring where board space and power budget are constrained.
Availability
TS339IYDT is available at Aetrix Electronics and suitable for automotive body electronics, battery management subsystems, and industrial sensor interface designs requiring stable component supply and AEC-Q200 compliance.
Supply support for TS339IYDT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing products for automotive, industrial, and consumer markets with emphasis on power efficiency and reliability.
The TS339 belongs to ST's precision analog comparator product line, engineered specifically for low-power, high-accuracy threshold detection in automotive and industrial control systems where extended battery life and robust operation across wide temperature ranges are essential.
FAQ
What is the maximum operating temperature for TS339IYDT?
The TS339IYDT is rated for operation from −40°C to +125°C ambient temperature, meeting AEC-Q200 Grade 1 requirements for automotive under-hood and cabin applications. This rating is validated per STMicroelectronics' qualification test plan and applies to the SO-14 package variant with specified thermal derating above +105°C.
Does TS339IYDT require external pull-up resistors on its outputs?
No. TS339IYDT features CMOS push-pull outputs capable of sourcing up to 1 µA and sinking up to 6 mA, eliminating the need for external pull-up resistors. This simplifies design, reduces component count, and improves signal rise/fall times compared to open-collector comparators like LM339.
Can TS339IYDT operate from a 3.3 V supply?
Yes. TS339IYDT supports single-supply operation from 2.7 V to 16 V, including standard 3.3 V logic rails. At 3.3 V, it maintains 1 pA input bias current, 5 mV typical input offset voltage, and 1.5 µs response time with 5 mV overdrive-enabling direct integration with 3.3 V microcontrollers and sensors.
How does TS339IYDT differ from TS339IDT?
TS339IYDT is the automotive-grade version (AEC-Q200 qualified, −40°C to +125°C), while TS339IDT is industrial-grade (−40°C to +105°C). Both share identical electrical specifications and SO-14 packaging, but TS339IYDT undergoes additional stress testing-including extended temperature cycling and humidity bias-to meet automotive reliability standards.
TS339IYDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 25µA
- Current - Quiescent (Max):
- 75dB CMRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 14-SO
TS339IYDT FAQ
1.How can I place an order for TS339IYDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS339IYDT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TS339IYDT reliable?
The price and inventory of TS339IYDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS339IYDT is usually 5 days.
3.What payment methods are accepted for TS339IYDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS339IYDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS339IYDT?
TS339IYDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS339IYDT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TS339IYDT?
For technical support, including TS339IYDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS339IYDT requirements.
6.How does Aetrix verify that TS339IYDT is sourced from the original manufacturer or authorized distributors?
All TS339IYDT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TS339IYDT meets industry standards.
7.What is the process for return or replacement of TS339IYDT?
All TS339IYDT units undergo pre-shipment inspection (PSI). If there is an issue with TS339IYDT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TS339IYDT part is unused and in its original packaging.
Return procedure for TS339IYDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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